Flume与Kafka对接

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筋斗云
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Flume对接Kafka

Flume组件: agent source channel sink

kafka组件: producer 节点集群服务器 **consumer **

1.形式1: FLume --> Kafka的对接

此时Flume中的sink是生产者, 让kafka来接收

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1.1KafkaSink

将用flume监测端口数据,传送到 ksfka

(1)创建netcat-flume-kafka.conf 配置文件

[itwise@node2 ~]$ cd /opt/module/flume-1.9.0/jobs/ 创建文件夹 [itwise@node2 jobs]$ mkdir flume--kafka [itwise@node2 flume--kafka]$ vim netcat-flume-kafka.conf  

配置文件如下:

#Named a1.sources = r1 a1.channels = c1 a1.sinks = k1 #Source a1.sources.r1.type = netcat a1.sources.r1.bind = 0.0.0.0 a1.sources.r1.port = 6666 #Channel a1.channels.c1.type = memory a1.channels.c1.capacity = 10000 a1.channels.c1.transactionCapacity = 100 #Sink a1.sinks.k1.type = org.apache.flume.sink.kafka.KafkaSink a1.sinks.k1.kafka.bootstrap.servers = node2:9092,node3:9092,node4:9092 a1.sinks.k1.kafka.topic = flumetopic a1.sinks.k1.kafka.flumeBatchSize = 100 a1.sinks.k1.useFlumeEventFormat = true a1.sinks.k1.kafka.producer.acks = -1 #Bind a1.sources.r1.channels = c1 a1.sinks.k1.channel = c1 

1.2运行:

启动一个node2窗口,创建一个消费者,消费kafka中的flumetopic中的数据

kafka-console-consumer.sh --bootstrap-server node2:9092 --topic flumetopic 

再启动一个node2端口:运行如下命令

flume-ng agent -c $FLUME_HOME/conf -f $FLUME_HOME/jobs/flume--kafka/netcat-flume-kafka.conf -n a1 -Dflume.root.logger=INFO,console 

启动第三监控窗口输入消息

nc localhost 6666 

1.3运行截图:三合一

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2. Flume -> Kafka : KafkaSinktopic支持

此时Flume中的sink是生产者, 让kafka来接收,将flume管道多路复用

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2.1创建配置文件netcat-flume-kafkatopic.conf

[itwise@node2 ~]$ cd /opt/module/flume-1.9.0/jobs/ [itwise@node2 flume--kafka]$ vim netcat-flume-kafkatopic.conf 

配置文件如下:

#Named a1.sources = r1 a1.channels = c1 a1.sinks = k1 #Source a1.sources.r1.type = netcat a1.sources.r1.bind = 0.0.0.0 a1.sources.r1.port = 6666 #Channel a1.channels.c1.type = memory a1.channels.c1.capacity = 10000 a1.channels.c1.transactionCapacity = 100 #Interceptor a1.sources.r1.interceptors = i1 a1.sources.r1.interceptors.i1.type =com.itwise.flume_kafka.Topics_Interceptor$MyBuilder #Sink a1.sinks.k1.type = org.apache.flume.sink.kafka.KafkaSink a1.sinks.k1.kafka.bootstrap.servers =node2:9092,node3:9092,node4:9092 a1.sinks.k1.kafka.topic = topicother a1.sinks.k1.kafka.flumeBatchSize = 100 a1.sinks.k1.useFlumeEventFormat = true a1.sinks.k1.kafka.producer.acks = -1 #Bind a1.sources.r1.channels = c1 a1.sinks.k1.channel = c1 

(2)编写java代码,接口实现数据分发到不同的topic上:

package com.itwise.kafka.flumeinterceptor; import org.apache.flume.Context; import org.apache.flume.Event; import org.apache.flume.interceptor.Interceptor; import java.nio.charset.StandardCharsets; import java.util.List; public class DataValueInterceptor implements Interceptor { @Override public void initialize() { } @Override public Event intercept(Event event) { //实现逻辑 判断 //javaspring hadoop String body = new String(event.getBody(), StandardCharsets.UTF_8); if(body.startsWith("java")){ event.getHeaders().put("topic", "java"); }else if(body.startsWith("hadoop")){ event.getHeaders().put("topic", "hadoop"); }else{ event.getHeaders().put("topic", "other"); } return event; } @Override public List<Event> intercept(List<Event> list) { for (Event event : list) { intercept(event); } return list; } @Override public void close() { } public static class MyBuilder implements Builder{ @Override public Interceptor build() { return new DataValueInterceptor(); } @Override public void configure(Context context) { } } } 

将自定义拦截器打包上传到flume的lib包下:

2.2启动命令:

[itwise@node2 ~]$ flume-ng agent -c $FLUME_HOME/conf -f $FLUME_HOME/jobs/flume--kafka/netcat-flume-kafkatopic.conf -n a1 -Dflume.root.logger=INFO,console 

往端口发送数据:

nc localhost 6666 

启动消费者3个:分别取访问:java hadoop other

kafka-topics.sh --list --bootstrap-server node2:9092 kafka-console-consumer.sh --bootstrap-server node2:9092 --topic java --from-beginning kafka-console-consumer.sh --bootstrap-server node2:9092 --topic hadoop --from-beginning kafka-console-consumer.sh --bootstrap-server node2:9092 --topic other --from-beginning 

2.3演示:

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3. Kafka–>Flume : Kafka Source

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3.1新建配置文件kafka-flume-logger.conf

#Named a1.sources = r1 a1.channels = c1 a1.sinks = k1 #Source a1.sources.r1.type =org.apache.flume.source.kafka.KafkaSource a1.sources.r1.kafka.bootstrap.servers =node2:9092,node3:9092 a1.sources.r1.kafka.topics = itwise a1.sources.r1.kafka.consumer.group.id = flume a1.sources.r1.batchSize = 100 a1.sources.r1.useFlumeEventFormat = false #Channel a1.channels.c1.type = memory a1.channels.c1.capacity = 10000 a1.channels.c1.transactionCapacity = 100 #Sink a1.sinks.k1.type = logger #Bind a1.sources.r1.channels = c1 a1.sinks.k1.channel = c1 

3.2启动

1)flume消费者 运行代码;

flume-ng agent -c $FLUME_HOME/conf -f $FLUME_HOME/jobs/kafka--flume/kafka-flume-logger.conf -n a1 -Dflume.root.logger=INFO,console 

2)启动一个kafka生产者:

查看列表 kafka-topics.sh --list --bootstrap-server node2:9092 查看主题状态 kafka-topics.sh --describe --bootstrap-server node2:9092 --topic itwise 使用生产者 kafka-console-producer.sh --topic itwise --broker-list node2:9092 

3.3效果演示:

kafka生产者产生数据

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flume消费者: 效果加了一个headers

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4.KafkaChannel --> xxxSink

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4.1创建一个配置文件:kafkachannel-flume-logger.conf

#Named a1.channels = c1 a1.sinks = k1 #Source #Channel a1.channels.c1.type =org.apache.flume.channel.kafka.KafkaChannel a1.channels.c1.kafka.bootstrap.servers =node2:9092,node3:9092,node4:9092 a1.channels.c1.kafka.topic = itwise a1.channels.c1.kafka.consumer.group.id = flume #将offset提交方式设置为latest,最后数据 a1.channels.c1.kafka.consumer.auto.offset.reset = latest a1.channels.c1.parseAsFlumeEvent = false #Sink a1.sinks.k1.type = logger #Bind a1.sinks.k1.channel = c1 

4/2运行:

启动下游消费者flume

flume-ng agent -c $FLUME_HOME/conf -f $FLUME_HOME/jobs/kafka/kafkachannel-flume-logger.conf -n a1 -Dflume.root.logger=INFO,console 

启动生产者 kafka

 kafka-console-producer.sh --topic itwise --broker-list node2:9092 

4.3演示:

生产者

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消费者:

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5.xxxSource --> KafkaChannel

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5.1配置生产者文件 netcat-flume-kafkachannel.conf

#Named a1.sources = r1 a1.channels = c1 #Source a1.sources.r1.type = netcat a1.sources.r1.bind = 0.0.0.0 a1.sources.r1.port = 6666 #Channel a1.channels.c1.type=org.apache.flume.channel.kafka.KafkaChannel a1.channels.c1.kafka.bootstrap.servers=node2:9092,node3:9092,node4:9092 a1.channels.c1.kafka.topic = itwise a1.channels.c1.parseAsFlumeEvent = false #Sink #Bind a1.sources.r1.channels = c1 

5.2运行:

启动消费者 并且调动之前的数据:

kafka-console-consumer.sh --topic itwise --bootstrap-server node2:9092 --from-beginning 

启动生产者录入数据

nc localhost 6666 
flume-ng agent -c $FLUME_HOME/conf -f $FLUME_HOME/jobs/kafka/netcat-flume-kafkachannel.conf -n a1 -Dflume.root.logger=INFO,console 

5.3演示:

生产者监控端口输入消息:

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kafka处理:

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消费者消费数据:加载之前的数据

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nc localhost 6666 
flume-ng agent -c $FLUME_HOME/conf -f $FLUME_HOME/jobs/kafka/netcat-flume-kafkachannel.conf -n a1 -Dflume.root.logger=INFO,console 

5.3演示:

生产者监控端口输入消息:

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kafka处理:

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消费者消费数据:加载之前的数据

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